Amethyst Galleries
Amethyst Galleries: Mineral Gallery:
This site gives is an entry portal to information on gems and gemstones, including pictures of specimens and details on their physical properties and where they can be found.
Curated OER
The Mineral Gallery: Emerald
A brief physical description of emeralds from an online database about minerals. Provides information about history, characteristics, color, and use.
Amethyst Galleries
Amethyst Galleries: Mineral Gallery: Opal
This resource provides general information on opal, including color, hardness, uses, and pictures.
Amethyst Galleries
Amethyst Galleries: Mineral Gallery: Jade
This resource has general information on jade, and provides a physical description.
Amethyst Galleries
Amethyst Galleries: Mineral Gallery: Ruby
This site gives general information about the gem, ruby. Also included is information about hardness, color, uses, and other physical characteristics
Amethyst Galleries
Amethyst Galleries: The Mineral Diamond
This resource provides information on diamonds, such as physical characteristics, and physical properties.
Amethyst Galleries
Amethyst Galleries: Mineral Gallery: Amethyst Purple Variety of Quartz
A detailed description of amethyst, including its physical properties and the more noteworthy locations it is mined.
Amethyst Galleries
Amethyst Galleries: Mineral Gallery: Zircon
This resource provides general information on zircon, including hardness, color, and uses.
Amethyst Galleries
Amethyst Galleries: Mineral Gallery: Moonstone
This resource provides information on Moonstone, or Oligoclase.
Other
Bob's Rock Shop
This enormous, non-commercial site provides links to information on everything from the properties of gemstones and minerals, to tips on purchasing them, to mounting them for jewelry.
Other
Webmineral: Quartz
This site is filled with information on the mineral quartz. General information, images, physical properties, and resources are also included.
Curated OER
Amethyst Gallery: The Mineral Gallery
This site gives is an entry portal to information on gems and gemstones, including pictures of specimens and details on their physical properties and where they can be found.
Jewelry Central
Jewelry Central: Amethyst
Information on this commercial site gives the physical properties and origin of the amethyst, as well as some of the mythical and metaphysical properties ascribed to the gemstone.
Jewelry Central
Jewelry Central: Jade
This site contains information on the gemstone jade, including physical characteristics, historical significance, and where it is found.
Amethyst Galleries
Amethyst Galleries: Mineral Gallery: Aquamarine, the Blue Variety of Beryl
This site has some background information on aquamarine, a blue form of beryl. Provides details about variety, uses, color, and more. Detailed and helpful information.
Amethyst Galleries
Amethyst Galleries: Mineral Gallery: Diamond
A detailed discussion of the physical properties of diamonds, including different forms of carbon, locations of origin, uses, color, and more. Informational and helpful concerning diamonds.
Amethyst Galleries
Amethyst Galleries: Mineral Gallery: Sapphire, the Non Red Variety of Corundum
This resource provides general information on sapphire, including hardness, color, and uses.
Other
Icga: Aquamarine, Gem of the Sea
A brief description of the physical properties of the aquamarine gemstone, along with a perspective on its history and metaphysical properties.
Other
Icga: Agate, Stripe Up the Bands
An interesting, brief discussion of the gem and mineral agate, including its physical properties and historical uses.
Curated OER
The Mineral Gallery: Amethyst
A detailed description of amethyst, including its physical properties and the more noteworthy locations it is mined.
Curated OER
The Mineral Gallery: Aquamarine
This site has some background information on aquamarine, a blue form of beryl. Provides details about variety, uses, color, and more. Detailed and helpful information.
Wikimedia
Wikipedia: Topaz
This encyclopedia article from Wikipedia provides a general overview of the gemstone topaz. Liinks are provided for additional information on related subjects.
Other
Gem Hut: Moonstone Gemstones
This commercial site gives a brief description of moonstone with pictures of finished stones.
Georgia State University
Georgia State University: Hyper Physics: Amethyst
This colorful site contains pictures of amethyst crystals that are displayed in the Smithsonian Museum of Natural History.